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19 February, 12:48

What is the answer to this equation

3 3/7 + 4 5/7=

+3
Answers (2)
  1. 19 February, 12:51
    0
    Conversion a mixed number 3 3

    7

    to a improper fraction: 3 3/7 = 3 3

    7

    = 3 · 7 + 3

    7

    = 21 + 3

    7

    = 24

    7

    To find new numerator:

    a) Multiply the whole number 3 by the denominator 7. Whole number 3 equally 3 * 7

    7

    = 21

    7

    b) Add the answer from previous step 21 to the numerator 3. New numerator is 21 + 3 = 24

    c) Write previous answer (new numerator 24) over the denominator 7.

    Three and three sevenths is twenty-four sevenths

    Conversion a mixed number 4 5

    7

    to a improper fraction: 4 5/7 = 4 5

    7

    = 4 · 7 + 5

    7

    = 28 + 5

    7

    = 33

    7

    To find new numerator:

    a) Multiply the whole number 4 by the denominator 7. Whole number 4 equally 4 * 7

    7

    = 28

    7

    b) Add the answer from previous step 28 to the numerator 5. New numerator is 28 + 5 = 33

    c) Write previous answer (new numerator 33) over the denominator 7.

    Four and five sevenths is thirty-three sevenths

    Add: 24

    7

    + 33

    7

    = 24 + 33

    7

    = 57

    7

    For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of the both denominators - LCM (7, 7) = 7. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 7 * 7 = 49. In the next intermediate step the fraction result cannot be further simplified by cancelling.

    In words - twenty-four sevenths plus thirty-three sevenths = fifty-seven sevenths.
  2. 19 February, 13:03
    0
    8 1/7

    Step-by-step explanation:

    First, you take 3 and 3/7 and line it up with 4 and 5/7 and first you add your whole numbers which come before the fractions and get 7. Next, you add the fractions and get 8/7. Now you know it needs symplified because its an improper fraction. To symplify you have to * or : and whatever one you do you have to do it to both the numerator and denominator. If you divide 8:7=1 R1 7:7=1. Last add 7+1+1/7=8 1/7.
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